I had my APN settings totally trashed after an HTC OTA upgrade to ICS, with no success in trying to get the settings restored from the carrier. I had to manually re-enter them from settings found in some obscure forums, as the settings are not documented on their website. The settings 'looked' OK, but did not work at all. I was not using Waze at the time, but until this was sorted no apps that required network worked without wifi . Is there any chance that your settings is toast and possibly responsible for the crash?